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IBM System/360 20 User Manual

IBM System/360 20
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The
program
control
statements
for
the
MSERV
program
are
read
on
the
device
assigned
to
SYSRDR.
PREPARATION
OF
THE
SYSTEM
The
operator
must
take
the
~ollowing
steps
to
prepare
the
system
for
the
execution
of
the
MSERV
program.
1.
If
the
system
run
has
not
already
been
initiated,
follow
the
procedure
described
in
the
section
lh~-1a~e
ResidenL~Y§.!~!!!·
2.
Place
into
the
hop~er
of
SYSRDR:
•
the
cards
containing
the
job
control
statements
•
the
cards
containing
the
program
con-
trol
statements.
3.
Press
the
start
key
of
the
device
assigned
to
SYSRDR.
4.
If
the
printer
is
to
be
used
as
SYSLST
and/or
SYSLOG,
prepare
and
start
this
device.
5.
If
a
card
punching
device
has
been
assigned
to
SYSOPT,
place
blank
cards
in
the
hopper
of
the
device
and
press
the
Start
key.
6.
Mount
a
work
tape
on
the
drive
assigned
to
SYSOOO.
Press
the
Load-Rewind
key
and
the
Start
key
of
this
drive.
7.
Press
the
Start
key
on
the
CPU
console
(or
the
Load
key
if
execution
of
the
MSERV
program
is
the
first
job
in
the
system
run).
PROGRAMMED
HALTS
A
number
of
programmed
halts
may
occur
dur-
ing
the
loading
and
execution
of
the
MSERV
program.
The
halt-code
displays
and
the
associated
restart
procedures
are
described
in
the
section
Programmed_Ha1L~.i'§.Elll.§_~.nQ
~es1art~ro£~dur~~
MESSAGES
A
number
of
messages
may
be
printed
during
execution
of
the
MSERV
program.
These
mes-
sages
are
printed
on
either
SYSLOG
or
SYS-
LST
(depending
on
the
kind
of
message).
DESCRIPTION
OF
OUTPUT
The
output
from
the
MSERV
program
consists
of:
•
printed
output,
and/or
•
output
in
cards.
The
output
generated
by
the
DSPLY
state-
ment
is
the
same
as
that
generated
by
the
PUNCH
statement
except
for
the
fact
that
DSPIY
is
used
to
produce
a
print
file
and
PUNCH
a
card
file.
The
output
of
DSPCH
is
beth
a
card
file
and
a
print
file.
As
the
Macro
Maintenance
(MMAINn
pro-
gram
converts
the
format
of
the
model
and
cenditional-assembly
statements
of
a
macro
definition
into
an
internal
format
for
the
TPS
Assembler
at
the
time
they
are
put
onto
the
system
tape,
it
is
not
possible
to
reproduce
exactly
the
same
format
as
that
of
the
original
cards.
The
comments
for
MMAINT
and
the
original
card
numbers
are
lest,
and
MSERV
has
to
create
new
card
num-
bers.
However,
the
original
symbolic
para-
meters
and
the
sequence
symbols
~ill
be
the
same.
As a
result,
it
is
possible
to
insert
new
model
and
conditional-assembly
statements
into
the
card
deck
produced
as
output
from
~SEBV
and
to
put
the
revised
macro
definition
back
into
the
library
by
means
of
l'lMAINT.
The
output
of
MSERV
consists
of:
CAlI-AI
MACRO
prototype
statement
model
and
conditional-assembly
statements
MEND
At
the
end
of
the
output
file
there
will
be
a
II
END
card.
The
cards
will
have
an
identification
and
a
sequence
number
as
follows:
Columns
73
-
75
macro
identification
con-
sisting
of
the
first
char-
acter
and
the
last
two
characters
of
the
macro
name.
Columns
76
~
79
sequence
number.
The
first
macro
definition
of
each
priority
section
to
be
punched
will
be
pre-
ceded
by a PRIOR
control
statement
refer-
ring
to
that
priority
section.
Creation
and
l'laintenance
of
System
Tapes
61

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IBM System/360 20 Specifications

General IconGeneral
BrandIBM
ModelSystem/360 20
CategoryStorage
LanguageEnglish

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